Composition for preventing boiler incrustations.



NITED STATES PATENT OFFICE.

JOSEPH LEON MARIE ALPHONSE REIS, or ANTWERP, BELGIUM.

boMPosmoN FOR PREVENTING BOILER menus-muons;

srncxiucnrronrgmiin part of lhetters Patent no. 655,119,.dated July 31,1900. diaplicetion filed time 251'899. Serliilllo- 721,607 (Nospecimensi) To all. whom it may concern:

Be it known that I, J dsEPH neon MAME ,Y'ALPHONSE REIS, a subject of the King of Bel- 'gium, residing at Antwerp, in the Kingdom of Belgium, have invented certain new and useful Improvements in Means for Preventing Inc'rustatio'ns in Steam-Boilers, of which the following is a specification.

I The means now employed for preventing the formation of deposits and incrustations in steam-boilers can ordinarily only prevent salts of lime, magnesia, or iron from adhering to the walls of the boiler, but are not capable of avoiding deposits of such matters in the boiler in the condition'of mud, and'to remove such muddy sediments wholly it is always necessary to draw off all the water contained in the boiler and to open the boiler itself. Now this invention is intended to 0bviate these inconveniences; and it consists in keeping the salts which the water in the boiler contains in a state of solution until a very high degree of concentration is reached, so that complete saturation does not set in until after the boiler has been in operation for a comparatively-protracted space of time. When a sufficient saturation of the water in the boiler has been obtained, which may be ascertained by drawing off a little of the water from the boiler into a test tube or gage and determining the specific gravity of the water (after it has called down) by means of Baums salinometer, all that is required is to discharge the water from the boiler without any fear of the boiler retaining any muddy sediments, and consequently without the necessity of opening and inspecting the boiler. In practice it may be held down as a rule, that the water is sufficiently saturated, when it attains 15 Baum, though saturation may be carried much further and allowed to rise to at least 25 Baum or a density of 120 and a composition showing about thirty per cent. of sedimentary salts. The time during which operation may be thus conducted without discharging the contents of the boiler may vary, according to the nature of the water employed and the capacity of the boiler, between a fortnight and three months. By the use of my improved composition or preparation it is possible for the boiler to be maintained in operation for an unlimited period without any waste of time and without the expense for labor which the disconnection and refitting of the joints and the cleansing of the interior of the boiler would otherwise involve.

, sugar, no matter what its origin, or any saccharine substance, such as molasses from sugar factories; second, extract of tannin; third, silicate of soda or of potash; fourth, boric acid, and, fifth, the quantity of water necessary for binding these ingredients together. The proportions of the ingredients may vary according to circumstances. In practice, however, I prefer to employ the ingredients in substantially the following proportions: sugar, fifty-eight parts; extract of tannin, twenty parts; silicate, twenty parts; boracic acid, two parts. The quantity of water with which the above ingredients may be mixed will of course vary with the nature of the water used in the boiler. After admitting the compound thus formed in the boiler the water contained therein, whatever its percentage of salts of lime, should remain limpid, though slightly colored, and no precipitate can form, even in the presence of alarge quantity of sea-salt.

By the employment of the novel preparation hereinabove described theformation of adhesive incrustations and, indeed, the collection of heavy solidifying muddy deposits, which cannot be got rid of by simply emptying the boiler, but invariably require the boiler to be opened, will in all cases be avoided, whatever the nature of the water used.

What I claim is-.

1. The herein-described composition for preventing incrustations in steam-boilers, the same consisting of sugar, extract of tannin, silicate of soda or of potash, boric acid and sufficient water necessary for binding the above ingredients, substantially as described.

2. The herein described composition for In witness whereof I have hereunto set my preventing incrustations in-steam-boilers, the hand inpresence of two'witnesses. same consisting of fifty-eight (58) parts of sugar, twenty (20) parts of extract of tannin, JOSEPH LEON MARIE ALPHONSE REIS' 5 twenty (20) parts of silicate, two (2) parts of "Witnesses:

.boracic acid and. water sufiicient to bind the FRANCIS HAMILTON,

above ingredients. i CHRISTIAENSEN. 

